Can anyone having a nice and perhaps installed front fender measure the top, horizontal surface front outboard to the inboard edge.
I am trying to figure out how much difference there is between a CJ2A and 3A width over the M38.

They are 10" even from the seam at the 45 degree bend to the outboard edge. Same as CJ2 and CJ2A and CJ3A. Other than holes, the big difference on M38 fenders is the passenger one that has a pushed out area next to the grille for battery box clearance.